What is the blood pressure in chronic renal failure?

Written by Zhou Qi
Nephrology
Updated on April 08, 2025
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High blood pressure is a common complication of chronic renal failure, with about 70 to 80 percent of patients experiencing elevated blood pressure. Controlling blood pressure is also an important aspect of the treatment of chronic renal failure. Generally, it is best for such patients to keep their blood pressure below 130/80 mmHg, with systolic pressure below 130 mmHg and diastolic pressure below 80 mmHg. If a patient’s 24-hour urinary protein quantification exceeds 1 gram, the blood pressure control requirements are even more stringent, ideally below 125/75 mmHg. Adequately controlling blood pressure also helps to slow the progression of chronic renal failure.

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Written by Pan Wu Shan
Nephrology
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What is good to eat for chronic renal failure?

Dietary aspects of chronic kidney failure should be divided into two parts. Firstly, for patients who have not reached the uremic phase and have not undergone dialysis, it is important to maintain a low-salt, low-fat, high-quality low-protein diet, limiting salt intake to no more than three grams per day and avoiding fried and greasy foods. Lower-quality proteins like beans, soybeans, mung beans, etc., should be consumed in smaller quantities. Instead, more animal proteins should be consumed, such as lean meats, eggs, and milk. Once patients have entered the uremic phase and have started dialysis, a low-salt, low-fat, high-quality high-protein diet is necessary, as dialysis requires a significant amount of energy. Additionally, it is crucial to restrict fluid intake; consuming too much salt or water can easily lead to generalized edema and cardiovascular complications.

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Written by Li Liu Sheng
Nephrology
1min home-news-image

Precursors of renal failure

The kidneys have a very strong compensatory ability. When kidney function is slightly impaired, many people do not have any uncomfortable symptoms and feel everything is normal. However, if one actively seeks out early signs, it is possible to detect precursors to kidney failure. At this time, if one can go to the hospital in time for routine blood tests, urine tests, and kidney function tests, it is possible to determine if there is kidney failure. The most obvious precursor symptom of kidney failure is usually general fatigue, which many people tend to overlook. This is because there are indeed many reasons that can cause fatigue, especially since many people attribute it to fatigue or stress factors. Additionally, many patients with precursors to kidney failure experience edema, particularly the kind that disappears after rest, so it is especially not taken seriously. Another symptom of kidney failure precursors is a significant increase in the frequency of urination at night, which is also often overlooked.

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Written by Zhou Qi
Nephrology
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Chronic kidney failure is not contagious.

Chronic kidney failure is not contagious. Strictly speaking, chronic kidney failure is not an independent disease; it is a state of disease. It refers to various causes that damage the kidneys, leading to the loss of kidney tissue, and ultimately, the kidneys lose their ability to perform excretory functions. This state is called chronic kidney failure. Chronic kidney failure itself is not contagious. Contagious diseases involve some type of pathogen, whereas the common causes of chronic kidney failure include chronic nephritis, diabetes, kidney diseases, hypertensive nephropathy, etc. None of these diseases are contagious, hence chronic kidney failure is also not contagious.

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Written by Wu Ji
Nephrology
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Principles of Treatment for Chronic Renal Failure

The principles of treatment for chronic renal failure include early-stage non-dialysis conservative treatment as well as end-stage renal replacement therapy. Non-dialysis conservative treatment includes delaying the progression of kidney damage, which requires treating the primary disease, implementing nutritional support, and controlling factors that accelerate kidney disease progression, such as controlling high blood pressure, proteinuria, and hyperlipidemia. Additionally, it is necessary to eliminate metabolic waste from the body, and maintain the body's water, electrolyte, and acid-base balance. Renal replacement therapy includes hemodialysis, peritoneal dialysis, and kidney transplant therapy.

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Written by Wang Fei Long
Nephrology
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Chronic Renal Failure Replacement Therapy

Chronic kidney failure is the irreversible loss of nephron units and kidney function caused by the progressive progression of chronic kidney disease, leading to a clinical syndrome characterized by the retention of metabolic products and toxins, disturbances in electrolyte and acid-base balance, and endocrine disorders. Chronic kidney failure often progresses to end-stage kidney disease, and the late stage of chronic kidney failure is called the uremic stage. After entering the uremic stage, renal replacement therapy is often required, with the main methods being hemodialysis, peritoneal dialysis, and kidney transplantation.